//
//  add.m
//  计算器
//
//  Created by administrator on 13-7-31.
//  Copyright (c) 2013年 yy. All rights reserved.
//

#import "add.h"

@implementation add

-(NSNumber*)compute
{
 long long result=[self.opNumA longLongValue]+[self.opNumB longLongValue];
    return [NSNumber numberWithLongLong:result];
}

@end
